Path: utzoo!mnetor!uunet!husc6!cmcl2!brl-adm!brl-smoke!gwyn
From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.sys.apple
Subject: Re: ProDOS on the II+
Message-ID: <7671@brl-smoke.ARPA>
Date: 12 Apr 88 14:52:46 GMT
References: <8804120159.aa03521@SMOKE.BRL.ARPA>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 12

In article <8804120159.aa03521@SMOKE.BRL.ARPA> AWCTTYPA@UIAMVS.BITNET ("David A. Lyons") writes:
>Correct me if I'm wrong, but that applies only to 5.25 drives and was
>never tracked down for sure.  Open-Apple came up with a perfectly
>believable explanation of the problem, but I don't think they convinced
>Apple to make their patch to ProDOS.  As I recall, the problem resulted
>only when you got unlucky booting a 5.25 drive *and* you had an older power
>supply.

No, that was a bogus diagnostic.  The actual culprit was a bug
in ProDOS that left the disk electronics in write mode at an
inappropriate time.  The most recent release of ProDOS appears
to have fixed this.